> This whole time I thought it was Profit. Stupid me.

You could be profitable with 1 user that pays way more than the rest (e.g. the only "business plan" user, or an user that use the application more than the others on a usage-based plan). If losing that customer means going out of business than the company is not healthy.

Of course that is a possibility.

I don't think you should do it that way though.

It's better to have 100 customers, each responsible for 1% of your income.

Source: self

Still much healthier than the company next door, that doesn't have the user who keeps the accounts in the black.

In this way you could be profitable after only 1 month or 10 years, if 1 month that's interesting.